[B’ Spokes: Talk to any bike messenger company, we are already there with too much car traffic downtown. The problem will only get worse over time as we add more cars (increasing at a rate faster then the population) the congested area for cars will only get larger as there is not enough money or space to expand capacity.]
https://www.salon.com/2011/12/17/in_the_future_urban_bikers_go_faster_than_cars/
Biking in Baltimore